---
title: "Vitamin B12 — £1.6M/yr Amazon UK Niche (2026) - Flapen"
canonical_url: "https://flapen.com/research/uk/health-personal-care/vitamin-b12"
last_updated: "2026-07-31T13:26:00.552Z"
locale: en
meta:
description: "Niche score 47/100 · £1.6M/yr market · 1.5M searches/yr · £6.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:description": "Niche score 47/100 · £1.6M/yr market · 1.5M searches/yr · £6.51 avg price. Doesn't clear our bar today. Data updated Jul 2026."
"og:title": "Vitamin B12 — £1.6M/yr Amazon UK Niche (2026) - Flapen"
---
# **vitamin b12**
**Skip it**
Prices mostly outside the sweet spot ($4.73–$7.99) — this niche doesn't clear our bar today.
Market size 89Growth 22Conversion 98Competition 14Returns 100Price range 0Avg price 18Brand share 37Review moat 23Quality gap 27
**Returns**
**Incredible****0.1%**
return rate — above 5% kills the launch gate
**Conversion**
**Incredible****16.6%**
search→purchase rate — share of searches ending in a sale
**Market size**
**Great****£1.6M**
£1.6M/yr · 1.5M searches
**Brand share**
**Okay****83%**
top-5 brand share — brands hold most of the demand
**Quality gap**
**Okay****4.6★**
avg incumbent rating — lower means beatable quality
**Review moat**
**Bad****7,909.45**
avg incumbent reviews — the moat a new listing must climb
**Growth**
**Bad****-7.0%**
90-day search growth — must beat 0% to launch
**Avg price**
**Bad****£6.51**
avg listing price — sweet spot $15–$100
**Competition**
**Bad****83%**
top-5 click share — a locked-up shelf
**Price range**
**Bad****£4.73–£7.99**
cheapest to priciest tracked listing — scored on the share inside $15–$100
According to Flapen's Amazon United Kingdom niche tracking, vitamin b12 is a £1.6M/yr Amazon United Kingdom market (1.5M searches/yr). The top 5 brands hold 83% of demand. Verdict: Skip it — 47/100.
Data updated Jul 25, 2026 · scored weekly · [~~How we score niches ~~](https://flapen.com/research/methodology)
## **vitamin b12 market data**
- **Units sold / yr**
- **200K–250K**
- avg 20,000–25,000/product
- **Revenue / yr**
- **£1.3M–£1.6M**
- units × avg price
- **Conversion rate**
- **16.6%**
- **Avg BSR**
- **#8**
- **Page quality**
- **0%**
- **Prime**
- **100%**
- **Sponsored**
- **100%**
- **Out of stock**
- **0.7%**
- **Avg brand age**
- **63 months**
- **Avg seller age**
- **163 days**
## **Competition & brand share**
The top 5 products capture 83% of clicks — a locked-up shelf that new listings rarely crack.
**Brands**
**11 **▼falling
**Sellers**
**57**
**Top-5 brand share**
**83%**
Top 20: 100%
**Top-5 click share**
**83%**
Top 20: 100%
**Open market**
**13%**
- Nutrition Geeks41% - WeightWorld22% - Zipvit11% - Solgar5% - Nutravita4% - Red Label Health4% - Open — no brand owns it (5 brands, 13%)
## **Demand & seasonality**
Weekly Amazon search volume, last 104 weeks — -7.0% search growth over the last 90 days.
30K20K seasonSepDecMarJunAugNovMarMay
No pronounced peak months · busiest ÷ quietest = 1.3×
[**Open Trend **](https://flapen.com/research/uk/health-personal-care/vitamin-b12/trend)
## **Top vitamin b12 search terms**
- **vitamin b12**548K/yr-4.8%13.1% conv. - **b12**316K/yr-5.7%12.7% conv. - **b12 tablets high strength**220K/yr-6.9%16.6% conv. - **b12 vitamin**116K/yr-21.5%11.4% conv. - **vitamin b12 tablets high strength**69K/yr-6.7%16.1% conv. - **b12 supplement**32K/yr+9.7%11.0% conv. - **vitamin b12 methylcobalamin**20K/yr+17.2%4.9% conv. - **b12 tablets**30K/yr-23.8%11.9% conv. - **vit b12**24K/yr-7.4%12.6% conv. - **vitamin b12 tablets**28K/yr-30.9%12.4% conv. [**All search terms **](https://flapen.com/research/uk/health-personal-care/vitamin-b12/search-terms)
## **Top vitamin b12 products on Amazon**
Each bubble is one product — market share against review moat; bubble size tracks estimated sales, color grades how beatable the incumbent looks.
0%15%£246K30%£492K45%£737K60%£983K1001K10K100K Reviews — right = deep review moatMarket share (90d) ≈ est. sales
Beatable (≤4.3★) Contested Strong incumbent (>4.7★)
All 11 tracked products in this niche — three views at once, no toggling.
### **Top sellers**
by 90-day click share
[1**Vitamin B12 Tablets High Strength - 1 Year Supply (365 Tablets) - 1000mcg Dual Power B12 Vitamin Complex with Methylcobalamin & Adenosylcobalamin - Vegan Supplement - (Packaging Design May Vary)**Nutrition Geeks**£7.29**4.6★7,517 rev](https://www.amazon.co.uk/dp/B0BSG2NVP5) [2**Vitamin B12 Tablets - 450 Tablets (1+ Year Supply) - 1 Per Day - 1000mcg - 6mm in Size - Easy to Swallow - Methylcobalamin Form - Vegan Vitamin B12 Supplement for Men & Women - Made in the UK**WeightWorld**£6.50**4.5★28,784 rev](https://www.amazon.co.uk/dp/B08GG96FPL) [3**Zipvit Vitamin B12 Tablets High Strength 1100mcg 1 Year Supply Pure Methylcobalamin 360 Vegan Tablets Reduces Tiredness Supports Energy and Immunity**Zipvit**£6.66**4.6★10,839 rev](https://www.amazon.co.uk/dp/B06Y3749H6) [4**Solgar Vitamin 100 g B12 Tablets - Pack of 100 - Easy to take Form - for Healthy Nervous System Heart and Mind - Red Blood Cell Formation - Vegan**Solgar**£4.73**4.6★14,756 rev](https://www.amazon.co.uk/dp/B00014E9W0) [5**Nutravita Vitamin B12 1000mcg - 365 High Strength Vegan Tablets (1 Year Supply) - Max Strength B12 Supplement - Contributes to The Reduction of Tiredness and Fatigue - Made in The UK**Nutravita**£7.77**4.7★9,029 rev](https://www.amazon.co.uk/dp/B01N5RGV8U)
**~~View all top sellers →~~**
### **Newest**
by launch date
[**Vitamin B12 Tablets High Strength - 1 Year Supply (365 Tablets) - 1000mcg Dual Power B12 Vitamin Complex with Methylcobalamin & Adenosylcobalamin - Vegan Supplement - (Packaging Design May Vary)**Nutrition Geeks**£7.29**7,517 rev3y ago](https://www.amazon.co.uk/dp/B0BSG2NVP5) [**Vitamin B12 Tablets - 450 Tablets (1+ Year Supply) - 1 Per Day - 1000mcg - 6mm in Size - Easy to Swallow - Methylcobalamin Form - Vegan Vitamin B12 Supplement for Men & Women - Made in the UK**WeightWorld**£6.50**28,784 rev3y ago](https://www.amazon.co.uk/dp/B08GG96FPL) [**Red Label Health Vitamin B12 Tablets High Strength 1000mcg for Men & Women Pack of 360 Tablets (1 Year Supply) Methylcobalamin B12 Vitamin for Tiredness and Fatigue Vegetarian Vegan**Red Label Health**£5.04**948 rev3y ago](https://www.amazon.co.uk/dp/B0BG5W7WZG) [**Vitamin B12 High Strength Tablets - 1000mcg Vegan B12 Vitamin Methylcobalamin Supplement Contributes to The Reduction of Tiredness and Fatigue & Immune Energy Support Made in the UK (4 Month Supply)**NEW LEAF PRODUCTS**£7.38**1,674 rev5y ago](https://www.amazon.co.uk/dp/B08WWLP42D) [**Vegan Vitamin B12 Tablets 1500mcg Methylcobalamin High Strength with Added Folic Acid & Black Pepper - 180 Tablets (6 Month Supply) - Reduction of Tiredness & Fatigue - Made in The UK By YrHealth**yrhealth**£7.99**1,957 rev5y ago](https://www.amazon.co.uk/dp/B08S7G1K6M)
**~~View all new products →~~**
### **Trending**
90-day click momentum
[**Natures Aid Vitamin B12 1000g High Strength Sublingual Tablets Supports Energy Metabolism & Nervous System Vegan Non-GMO Gluten-Free Supplement 90 Tablets**Natures Aid**£5.35**4.6★**▲ 57%**](https://www.amazon.co.uk/dp/B003VR6IKK) [**Nutravita Vitamin B12 1000mcg - 365 High Strength Vegan Tablets (1 Year Supply) - Max Strength B12 Supplement - Contributes to The Reduction of Tiredness and Fatigue - Made in The UK**Nutravita**£7.77**4.7★**▲ 20%**](https://www.amazon.co.uk/dp/B01N5RGV8U) [**Solgar Vitamin 100 g B12 Tablets - Pack of 100 - Easy to take Form - for Healthy Nervous System Heart and Mind - Red Blood Cell Formation - Vegan**Solgar**£4.73**4.6★**▲ 16%**](https://www.amazon.co.uk/dp/B00014E9W0) [**Zipvit Vitamin B12 Tablets High Strength 1100mcg 1 Year Supply Pure Methylcobalamin 360 Vegan Tablets Reduces Tiredness Supports Energy and Immunity**Zipvit**£6.66**4.6★**▲ 11%**](https://www.amazon.co.uk/dp/B06Y3749H6) [**BetterYou Vitamin B12 Oral Spray High Strength Methylcobalamin Supplement 1200mcg per dose to Boost Energy Natural Apricot Flavour 48-Day Supply**Better You**£6.27**4.6★**▲ 10%**](https://www.amazon.co.uk/dp/B008FMBNZG)
**~~View all trending →~~**
## **What buyers say about vitamin b12**
What buyers praise and complain about, mined from review topics.
### **What buyers love **
**Value For Money**23%
*“Excellent value for money”*
**Quality-Overall**14%
*“Great quality arrived on time thanks Amazon”*
**Vitamin**11%
*“Good quality vitamin tablets”*
**Ease Of Chewing/Swallowing**11%
*“so no problem swallowing”*
**Advertised Vs Actual Product**8%
*“As advertised”*
**Ease Of Use**4%
*“Ease of use”*
**Dosage**3%
*“Good daily supplement”*
**Energy Level**3%
*“Energy boost”*
**Calcium**2%
*“B12+ Just been a week since I started them”*
**Nutritional Content**2%
*“Good supplement”*
### **What buyers complain about **
**Dosage**9%
*“your body will not absorb the amount you think it is in the daily dose”*
**Functionality-Overall**9%
*“Made no difference”*
**Side Effects**8%
*“Belly Cramps”*
**Size-Overall**7%
*“Much smaller than expected”*
**Vitamin**6%
*“I assume there maybe issues with my absorption of this vitamin”*
**Taste-Overall**4%
*“does not leave a lasting taste”*
**Allergies**3%
*“others like myself may be sensitive to them”*
**Regulates Digestion**3%
*“sadly cant get injection from NHS after a year of taking these my reading still borderline down to the fact these pass through the gut”*
**Blood Sugar Level**3%
*“I have to have regular blood tests as I am diabetic”*
**Heart Health**3%
*“sadly cant get injection from NHS after a year of taking these my reading still borderline down to the fact these pass through the gut”*
### **Top return reasons **
**Value For Money**100%
## **Common questions**
- **Is vitamin b12 profitable to sell on Amazon United Kingdom?**
- The niche generates £1.6M/yr across 11 tracked products. 90-day search growth is -7.0%. Flapen's verdict: Skip it (47/100).
- **How competitive is the vitamin b12 niche?**
- 11 brands and 57 sellers compete. The top 5 products take 83% of clicks and top 5 brands hold 83% of demand.
- **What do buyers complain about in vitamin b12?**
- Top complaints mined from reviews: Dosage, Functionality-Overall, Side Effects. The return rate is 0.1%.
- **When does demand for vitamin b12 peak?**
- Demand is steady year-round — the busiest month runs 1.3× the quietest.
- **What does it cost to enter the vitamin b12 niche?**
- Listings span £4.73–£7.99; the average listing price is £6.51 (sweet spot $15–$100). The average incumbent carries 7,909 reviews — the moat a new listing must climb.
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